Seiko Cal. 3831 - 729

The 3831-729 is a sought-after Solar piece from Seiko's golden era. Powered by the 3831 caliber with 17j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-6e4331076054]

Also known as: World Timer

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

36mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Silver

Jewels

17j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1967

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